Stamping device and spring brake chamber machining equipment

Abstract

The utility model discloses a stamping device and spring brake air chamber machining equipment, and belongs to the technical field of stamping equipment.The stamping device comprises a base and a supporting assembly, the supporting assembly is arranged on the base, and the supporting assembly comprises a driving part and a plurality of inner supporting sliding blocks; the multiple inner supporting sliding blocks are arranged on the outer side of the driving part in a surrounding mode and movably matched with the driving part, the multiple inner supporting sliding blocks can move in the direction away from the driving part under driving of the driving part and can support the inner wall of the workpiece, each inner supporting sliding block comprises a first side wall making contact with the inner wall of the workpiece, and a stamping groove is formed in the first side wall; and the stamping assembly is arranged on the outer side of the supporting assembly, the stamping assembly is provided with a stamping head, and the stamping head is matched with the stamping groove to stamp the workpiece. The driving piece drives the multiple inner supporting sliding blocks to support and position the workpiece, the punching head is matched with the punching groove, multi-point synchronous punching is achieved, and the punching efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of mechanical stamping, and in particular relates to a stamping device and spring brake air chamber processing equipment. Background Art

[0002] The spring brake chamber is a device used in the brake system, commonly found in vehicles such as cars, trains, and bicycles. The spring brake chamber consists of a spring and an air chamber. The air chamber is usually cylindrical in shape and is generally made of metal or plastic. It has rigidity and pressure resistance to withstand the high-pressure gas in the brake system. During the processing of the workpiece (cylindrical air chamber shell), the shell of the workpiece needs to be punched. However, the existing stamping device can only punch one tooth in a single stamping process, which is inefficient and cannot adapt to automated production. Utility Model Content

[0003] Purpose of the utility model: The purpose of the embodiment of the present application is to disclose a stamping device to solve the current technical problems of multiple workpiece stamping procedures and low tooth punching efficiency; another purpose of the embodiment of the present application is to disclose a spring brake air chamber processing equipment.

[0004] Technical solution: The embodiment of the present application provides a stamping device, comprising:

[0005] Base,

[0006] A support assembly, the support assembly is arranged on the base, the support assembly comprises: a driving member and a plurality of inner support sliders, the plurality of inner support sliders are arranged around the outer side of the driving member and movably cooperate with the driving member, the plurality of inner support sliders are driven by the driving member to move in a direction away from the driving member and can support the inner wall of the workpiece, the inner support slider comprises a first side wall in contact with the inner wall of the workpiece, and a stamping groove is provided on the first side wall;

[0007] A stamping assembly is arranged on the outside of the supporting assembly. The stamping assembly is provided with a stamping head, and the stamping head cooperates with the stamping groove to stamp the workpiece.

[0008] In some embodiments, a gap is provided between the driving member and the inner supporting slider, and the driving member is provided with a first guide portion, which protrudes relative to the driving member in the direction of the inner supporting slider, and a chamfer is provided on one side of the inner supporting slider relative to the driving member, and the driving member drives the plurality of inner supporting sliders to support the inner wall of the workpiece through the first guide portion.

[0009] In some embodiments, the base is provided with an assembly hole, the support assembly further comprises a guide seat, the guide seat is partially sleeved in the assembly hole and is provided with a guide hole penetrating in a vertical direction, and a portion of the guide seat located outside the assembly hole is formed with a guide portion overlapped with the base;

[0010] The driving member is disposed in the guide hole;

[0011] A plurality of inner supporting slide blocks are slidably matched with the guide portion.

[0012] In some embodiments, the inner support slider further includes a second side wall facing away from the driving member, the second side wall is connected to the first side wall and forms a step surface, and the step surface is used to support the workpiece.

[0013] In some embodiments, the support assembly further comprises:

[0014] A first driving unit, wherein the first driving unit is used to drive the driving member to form a sliding fit or a rotational fit with the guide seat.

[0015] In some embodiments, the stamping device further includes a reset mechanism, which includes a reset member, and the reset member is arranged on a side of the inner support slider away from the driving member, and is used to drive the inner support slider to reset after the stamping of the workpiece is completed.

[0016] In some embodiments, the base is further provided with a through hole, and the through hole is distributed outside the assembly hole; the stamping device further includes a reset mechanism, and the reset mechanism includes:

[0017] A reset member is movably arranged through the through-opening and has a first section and a second section located on opposite sides of the base, the first section is fixedly connected to the driving end of the first driving unit through a connecting member, and the second section is provided with a second guide portion, and the second guide portion protrudes relative to the reset member toward the direction of the inner supporting slider, and the reset member drives the plurality of inner supporting sliders to reset through the second guide portion under the drive of the driving member.

[0018] In some embodiments, the stamping assembly further comprises:

[0019] A second driving unit, the second driving unit is arranged at the bottom of the base, and is used to provide a driving force for the punch head;

[0020] A guide limit block, which is arranged on the base and has a guide limit hole, and the punch head movably passes through the guide limit hole and slidably cooperates with the guide limit block;

[0021] A lever arm, the lever arm having a first end and a second end disposed opposite to each other, the first end being rotatably connected to a driving end of the second driving unit;

[0022] A connecting arm, wherein the connecting arm has a third end and a fourth end that are arranged opposite to each other, the third end is rotationally connected to an end of the punch head away from the inner support slider, and the fourth end is rotationally connected to the second end.

[0023] In some embodiments, the stamping assembly further includes: an articulated seat, the articulated seat is fixed on the base, and the lever arm is rotatably connected to the articulated seat through a rotating pin at one end close to the connecting arm.

[0024] The present application also discloses a spring brake air chamber processing device, comprising a punching device as described in the above embodiment, wherein the punching device is used to punch teeth on an air chamber housing of a spring brake air chamber.

[0025] Beneficial effects: The stamping device of the embodiment of the present application includes: a base, a support assembly, the support assembly is arranged on the base, the support assembly includes: a driving member and a plurality of inner support sliders, the plurality of inner support sliders are arranged around the outside of the driving member and movably cooperate with the driving member, the plurality of inner support sliders can move in a direction away from the driving member under the drive of the driving member, and can support the inner wall of the workpiece, the inner support slider includes a first side wall in contact with the inner wall of the workpiece, and a stamping groove is provided on the first side wall; a stamping assembly, the stamping assembly is arranged on the outside of the support assembly, the stamping assembly is provided with a stamping head, and the stamping head cooperates with the stamping groove to stamp the workpiece. The plurality of inner support sliders are driven by the driving member to locate the position of the workpiece to be stamped, and the stamping cooperation between the stamping head and the stamping groove can realize multi-point synchronous stamping and improve the stamping efficiency.

[0026] A spring brake air chamber processing device according to an embodiment of the present application includes the above-mentioned stamping device, and thus can have all the technical features and beneficial effects of the above-mentioned stamping device, which will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 is a schematic diagram of a three-dimensional structure of a stamping device according to an embodiment of the present application, in which a workpiece is shown;

[0029] Figure 2 is a schematic top view of a stamping device according to an embodiment of the present application;

[0030] Figure 3 yes Figure 2 Schematic cross-sectional view in the middle BB direction;

[0031] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0032] Figure 5 yes Figure 3 A partial enlarged view of point C in the middle;

[0033] Figure 6 It is a schematic diagram of the assembly position relationship of a stamping assembly, a supporting assembly and a base in a stamping device according to an embodiment of the present application, and only two groups of stamping assemblies are shown in the figure;

[0034] Figure 7 It is a schematic diagram of a front view of a support assembly in a stamping device according to an embodiment of the present application, and the figure illustrates the positional relationship between the guide seat, the inner support slider and the driving member;

[0035] 1. Base; 2. Workpiece; 3. Support assembly; 4. Stamping assembly; 5. Reset mechanism; 10. Assembly hole; 30. First drive unit; 31. Drive member; 32. Internal support slider; 33. Guide seat; 40. Second drive unit; 41. Punch head; 42. Guide limit block; 43. Lever arm; 44. Connecting arm; 45. Articulated seat; 46. Rotating pin; 51. Reset member; 52. Connecting member; 100. Through opening; 311. First guide portion; 321. First side wall; 322. Second side wall; 331. Guide portion; 431. First end; 432. Second end; 441. Third end; 442. Fourth end; 511. First section; 512. Second section; 3120. Gap; 3210. Stamping groove; 3220. Step surface; 5121. Second guide portion. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0037] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, and at least one refers to one, two or more, unless otherwise clearly and specifically defined.

[0038] As a preface to the embodiments of the present application, it should be noted that during the processing of the workpiece (cylindrical air chamber shell), the workpiece needs to be punched. However, the existing punching device can only punch one tooth in a single punching process, which is inefficient and prone to manual mis-punching or insufficient punching of teeth. The punching tooth spacing cannot be accurately controlled and cannot adapt to automated production.

[0039] In view of this, an embodiment of the present application provides a stamping device, aiming to solve at least one of the above-mentioned technical problems.

[0040] The following is a detailed description of a punching device of the present application in conjunction with the accompanying drawings. In the absence of conflict, the features of the following embodiments and implementations can be combined with each other.

[0041] Please combine Figures 1 to 7 As shown, a stamping device of an embodiment of the present application includes: a base 1, a support assembly 3 and a stamping assembly 4; the base 1 is used to provide an installation position for the support assembly 3 to be installed, and the stamping assembly 4 is arranged outside the support assembly 3. It can be understood that in some embodiments, the stamping assembly 4 is arranged separately, and in some embodiments, the stamping assembly 4 is arranged on the base 1, such as Figure 1 , Figure 2 , Figure 3 as well as Figure 6 As shown;

[0042] See also Figure 3 and Figure 4 as well as Figure 7As shown, the support assembly 3 includes: a driving member 31 and a plurality of inner support sliders 32. The plurality of inner support sliders 32 are arranged around the outer side of the driving member 31 and movably cooperate with the driving member 31. The plurality of inner support sliders 32 are driven by the driving member 31 to move in a direction away from the driving member 31 and can support the inner wall of the workpiece 2. The inner support slider 32 includes a first side wall 321 that contacts the inner wall of the workpiece 2, and a stamping groove 3210 is opened on the first side wall 321; the stamping assembly 4 is provided with a stamping head 41, and the stamping head 41 cooperates with the stamping groove 3210 to stamp the workpiece 2. The multiple inner support sliders 32 are driven to move outward by the driving member 31 to support the inner wall of the workpiece 2, thereby fixing the workpiece 2 on the base 1 and realizing rapid positioning of the workpiece 2; by pre-setting a stamping groove 3210 on the first side wall 321 where the inner support slider 32 contacts the workpiece 2, and cooperating with the stamping assembly 4 arranged outside the workpiece 2, the stamping head 41 is correspondingly arranged to the stamping groove 3210 to realize stamping of the workpiece 2. During the entire stamping process, the inner support slider 32 always provides support for the inner wall of the workpiece 2 under the drive of the driving member 31, and at the same time, the external stamping head 41 provides stamping pressure to the outer wall of the workpiece 2. Under the limit of the stamping groove 3210, multiple teeth stamping can be realized on the outer wall of the workpiece 2 in one stamping process by arranging multiple stamping heads 41. The driving member 31 drives multiple inner support slide blocks 32 to locate the position to be punched of the workpiece 2, and the punching head 41 cooperates with the punching groove 3210 to achieve multi-point synchronous stamping, improve the stamping efficiency, and avoid the occurrence of manual punching errors or insufficient punching of teeth. The punching tooth spacing is accurate and the degree of automation is high.

[0043] It can be understood that, in some embodiments, the stamping assembly 4 is provided with a plurality of stamping heads 41, and the plurality of stamping heads 41 correspond one by one to the stamping grooves 3210 of the plurality of inner support sliders 32; Figure 1 and Figure 2 As shown, there are multiple punching assemblies 4 , and the multiple punching assemblies 4 are arranged on the outside of the supporting assembly 3 around the driving member 31 and correspond one by one to the multiple inner supporting sliders 32 .

[0044] It should be understood that, in some embodiments, only one set of stamping components 4 may be provided, and the support component 3 and the workpiece 2 may be rotated by a rotating mechanism, thereby achieving rapid stamping and realizing automated multi-point stamping.

[0045] See also Figure 5As shown, in some embodiments, a gap 3120 is provided between the driving member 31 and the inner support slider 32, and the driving member 31 is provided with a first guide portion 311, the first guide portion 311 protrudes relative to the driving member 31 in the direction of the inner support slider 32, and the inner support slider 32 is provided with a chamfer on one side of the driving member 31, and the driving member 31 drives multiple inner support sliders 32 to support the inner wall of the workpiece 2 through the first guide portion 311. It should be understood that in the initial state, when the inner support slider 32 does not support and position the workpiece 2, there is a gap 3120 between the driving member 31 and the inner support slider 32, and the first guide portion 311 is provided at a position misaligned with the inner support slider 32 on the driving member 31, and the driving member 31 moves relative to the inner support slider 32, and the first guide portion 311 contacts the inner support slider 32 and pushes the inner support slider 32 to move in a direction away from the driving member 31, so as to support and position the workpiece 2; that is, in the stamping state, the driving member 31 contacts the inner support slider 32 through the first guide portion 311 to support the inner wall of the workpiece 2. Similarly, when the stamping process is finished, the driving member 31 is reset and spaced apart from the inner support slider 32 again, and the inner support slider 32 loses its supporting effect on the workpiece 2, and the workpiece 2 can be removed. By setting a chamfer on the side of the inner support slider 32 relative to the driving member 31, it is ensured that the first guide portion 311 and the inner support slider 32 smoothly transition and fit. This driving method is highly flexible and has a clever structure. It can quickly position and support the workpiece 2 without a complicated driving method.

[0046] More specifically, the first side wall 321 of the inner support slider 32 in contact with the inner wall of the workpiece 2 can fit the inner wall of the workpiece 2, that is, the shape of the inner support slider 32 can be adaptively adjusted according to the inner wall structure of the workpiece 2 to expand the scope of application and adapt to the stamping of parts of different shapes.

[0047] See also Figure 6As shown, in some embodiments, the base 1 is provided with an assembly hole 10, and the support assembly 3 further includes a guide seat 33, the guide seat 33 is partially sleeved in the assembly hole 10, and is provided with a guide hole that penetrates in the vertical direction, and the guide seat 33 is located outside the assembly hole 10. The portion of the guide seat 33 that is located outside the assembly hole 10 forms a guide portion 331 that overlaps with the base 1; the driving member 31 is inserted into the guide hole; and a plurality of inner support sliders 32 are slidably matched with the guide portion 331. By providing the assembly hole 10 on the base 1, the guide seat 33 is inserted into the assembly hole 10. On the one hand, the guide hole provided by the guide seat 33 provides a space for the driving member 31 to guide the movement, and on the other hand, the guide portion 331 provides a sliding direction for the inner support slider 32, so as to avoid that when the driving member 31 moves relative to the inner support slider 32, the inner support slider 32 and the driving member 31 move in the same direction under the drive of the first guide portion 311, and cannot effectively support the inner wall of the workpiece 2. Furthermore, a guide groove is provided on one side of the guide portion 331 relative to the inner supporting slider 32, and a protrusion is provided on one side of the inner supporting slider 32 relative to the guide portion 331, and the inner supporting slider 32 slides relative to the guide seat 33 through the cooperation between the protrusion and the guide groove; conversely, the guide groove can be provided on the inner supporting slider 32, and the protrusion is correspondingly provided on the guide portion 331. In addition, other sliding schemes are not subject to the restrictions of the application and should also be within the protection scope of this application, so they will not be elaborated here.

[0048] See also Figure 4 As shown, in some embodiments, the inner support slider 32 also includes a second side wall 322 away from the driving member 31, and the second side wall 322 is connected to the first side wall 321 and forms a step surface 3220, and the step surface 3220 is used to carry the workpiece 2. It should be understood that the second side wall 322 is located on the side of the first side wall 321 away from the driving member 31 to form the step surface 3220 for carrying the workpiece 2. It can be seen that the inner support slider 32 can quickly position the workpiece 2 by simply placing the workpiece 2 with its opening facing downward on the step surface 3220, without the need to manually adjust the position of the workpiece 2, thereby improving the stamping efficiency.

[0049] In some embodiments, the support assembly 3 further includes: a first drive unit 30, which is used to drive the member 31 to form a sliding fit or a rotation fit with the guide seat 33. It should be understood that the first drive unit 30 can be a drive motor, which drives the drive member 31 to rotate through the drive motor to achieve the rotation of the drive member 31 relative to the guide seat 33; the first drive unit 30 can also be a hydraulic drive mechanism such as a cylinder or an oil cylinder, which drives the drive member 31 to slide along the direction of the guide hole through the hydraulic drive mechanism to achieve the vertical movement of the drive member 31.

[0050] Specifically, when the driving mode of the driving member 31 is rotation, the first guide portion 311 is arranged at intervals along the rotation direction of the driving member 31, and the first guide portion 311 is provided with an arc transition structure (rounded corner) on the side facing the adjacent inner support slider 32, so that when the first guide portion 311 rotates toward the inner support slider 32, it will not directly interfere with the inner support slider 32, thereby ensuring that the raised surface of the first guide portion 311 is in smooth contact with the side of the inner support slider 32 facing the driving member 31, so that the inner support slider 32 moves outward a certain distance and can support the inner wall of the workpiece 2.

[0051] For details, see Figure 3 As shown, when the driving mode of the driving member 31 is sliding, the first guide portion 311 is arranged in the sliding direction of the driving member 31, and the outer diameter of the first guide portion 311 is larger than the outer diameter of the driving member 31, so as to drive the inner support slider 32 to move in the direction away from the driving member 31; and the first guide portion 311 is provided with an arc transition structure (rounded corner) on the side facing the adjacent inner support slider 32, and the inner support slider 32 is provided with a chamfer on the side of the driving member 31 to ensure that the first guide portion 311 and the inner support slider 32 are smoothly transitioned and fitted, so that when the first guide portion 311 slides toward the inner support slider 32, it will not directly interfere with the inner support slider 32, thereby ensuring that the convex surface of the first guide portion 311 is in smooth contact with the side of the inner support slider 32 facing the driving member 31, so that the inner support slider 32 moves outward a certain distance and can support the inner wall of the workpiece 2. It should be understood that the outer convex surface of the first guide portion 311 can be an arc surface, or an asymmetric arc surface, and similarly, it can be an inclined surface.

[0052] In some embodiments, see Figure 3 and Figure 4 As shown, the stamping device also includes a reset mechanism 5, and the reset mechanism 5 includes a reset member 51. The reset member 51 is arranged on the side of the inner support slider 32 away from the driving member 31, and is used to drive the inner support slider 32 to reset after the workpiece 2 is stamped. By arranging the reset member 51, the inner support slider 32 can be reset after the workpiece 2 is stamped, so that the workpiece 2 can be removed and the unstamped workpiece 2 can be loaded, so as to improve the loading and unloading efficiency (workpiece 2). It should be understood that the reset mechanism 5 can be arranged on the base 1, or it can be arranged as a whole on the outside of the base 1. Its driving method can be the same as the driving method of the driving member 31 (not repeated here), or a telescopic cylinder or a telescopic oil cylinder can be used to directly push the inner support slider 32 to reset.

[0053] In some embodiments, the base 1 is further provided with a through opening 100 (such as Figure 6As shown), the through opening 100 is distributed on the outside of the assembly hole 10; the stamping device also includes a reset mechanism 5, the reset mechanism 5 includes: a reset member 51, which is movably provided with the through opening 100 and has a first section 511 and a second section 512 located on opposite sides of the base 1, the first section 511 is fixedly connected to the driving end of the first driving unit 30 through the connecting member 52, and the second section 512 is provided with a second guide portion 5121 (as shown Figure 4 As shown in the figure, the second guide portion 5121 protrudes relative to the reset member 51 toward the direction of the inner supporting slider 32, and the inner supporting slider 32 is provided with a chamfer on one side relative to the second guide portion 5121. The reset member 51 drives the multiple inner supporting sliders 32 to reset through the second guide portion 5121 under the drive of the driving member 31.

[0054] The reset member 51 and the driving member 31 are fixedly connected by the connecting member 52, so that the driving member 31 can synchronously drive the reset member 51 to move. When the driving member 31 drives the inner support slider 32 to support the inner wall of the workpiece 2, the reset member 51 and the second guide portion 5121 provided on the reset member 51 are misaligned with the inner support slider 32 (i.e., not in contact); and when the driving member 31 is reset, the second guide portion 5121 of the reset member 51 can push the inner support slider 32 to reset, thereby realizing the alternating cooperation between the driving member 31 and the reset member 51. The layout of the stamping device of this embodiment is simple, and no additional drive unit is required, which reduces the cost; the driving member 31 can drive the inner support slider 32 to support the inner wall of the workpiece 2 only through the driving instruction of the first driving unit 30, and the driving member 31 can be reset through the reset instruction of the first driving unit 30, and the reset member 51 drives the inner support slider 32 to reset, which has high working efficiency and high degree of automation.

[0055] In some embodiments, see Figure 6As shown, the stamping assembly 4 also includes: a second driving unit 40, which is arranged at the bottom of the base 1 and is used to provide a driving force for the stamping head 41; a guide limit block 42, which is arranged on the base 1 and is provided with a guide limit hole, and the stamping head 41 movably passes through the guide limit hole and slides with the guide limit block 42; a lever arm 43, the lever arm 43 has a first end 431 and a second end 432 that are relatively arranged, and the first end 431 is rotatably connected to the driving end of the second driving unit 40; a connecting arm 44, the connecting arm 44 has a third end 441 and a fourth end 442 that are relatively arranged, and the third end 441 is rotatably connected to an end of the stamping head 41 away from the inner support slider 32, and the fourth end 442 is rotatably connected to the second end 432. The second driving unit 40 is arranged at the bottom of the base 1, and the second driving unit 40, the lever arm 43 and the connecting rod arm form a driving connecting rod mechanism, and the guide limit block 42 forms a guiding sliding match with the punch head 41. The overall structure is compact, and the rigid bearing capacity of the driving connecting rod mechanism is strong, which meets the stamping requirements and precision requirements. Preferably, in some embodiments, the stamping assembly 4 also includes: an articulated seat 45, the articulated seat 45 is fixed on the base 1, and the lever arm 43 is rotatably connected to the articulated seat 45 through a rotating pin 46 at one end close to the connecting arm 44. By arranging the rotating pin 46 and the articulated seat 45 at one end of the lever arm 43 close to the connecting arm 44, the lever arm 43 has a rotation center, and the distance from the rotation center to the first end 431 is greater than the distance from the rotation center to the second end 432, the overall driving path is short, and time-saving and labor-saving stamping is achieved through the principle of the lever.

[0056] The stamping device of the embodiment of the present application has an ingenious overall structure and a high degree of integration, and a simple and labor-saving driving method, and can meet the needs of different workpieces 2 and different stamping degrees.

[0057] The embodiment of the present application also discloses a spring brake air chamber processing equipment, including the stamping device described in the above embodiment, and thus can have all the technical features and technical effects of the above stamping device, which will not be repeated here.

[0058] The punching device disclosed in the embodiment of the present application can be used to punch teeth on the air chamber housing of the spring brake air chamber.

[0059] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0060] The above is a detailed introduction to a stamping device and a spring brake air chamber processing equipment provided in the embodiments of the present application, and the principles and implementation methods of the present application are explained by using specific examples. The description of the above embodiments is only used to help understand the technical solution and its core idea of ​​the present application; ordinary technicians in this field should understand that: they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A punching device, characterized in that: include: Base (1), A support assembly (3), the support assembly (3) being arranged on the base (1), the support assembly (3) comprising: a driving member (31) and a plurality of inner support sliders (32), the plurality of inner support sliders (32) being arranged around the outer side of the driving member (31) and movably cooperating with the driving member (31), the plurality of inner support sliders (32) being driven by the driving member (31) to move in a direction away from the driving member (31) and being capable of supporting the inner wall of the workpiece (2), the inner support slider (32) comprising a first side wall (321) in contact with the inner wall of the workpiece (2), the first side wall (321) being provided with a stamping groove (3210); A stamping assembly (4), wherein the stamping assembly (4) is arranged on the outside of the supporting assembly (3), and the stamping assembly (4) is provided with a stamping head (41), and the stamping head (41) cooperates with the stamping groove (3210) to stamp the workpiece (2).

2. The punching device according to claim 1, characterized in that: A gap (3120) is provided between the driving member (31) and the inner supporting slider (32); the driving member (31) is provided with a first guide portion (311); the first guide portion (311) protrudes relative to the driving member (31) in the direction of the inner supporting slider (32); the driving member (31) drives the plurality of inner supporting sliders (32) to support the inner wall of the workpiece (2) via the first guide portion (311).

3. The punching device according to claim 1, characterized in that: The base (1) is provided with an assembly hole (10), and the support assembly (3) further comprises a guide seat (33), wherein the guide seat (33) is partially sleeved in the assembly hole (10) and is provided with a guide hole penetrating in a vertical direction, and a portion of the guide seat (33) located outside the assembly hole is formed with a guide portion (331) overlapped with the base (1); The driving member (31) is inserted into the guide hole; The plurality of inner support slide blocks (32) are slidably matched with the guide portion (331).

4. The punching device according to claim 1, characterized in that: The inner support slider (32) further comprises a second side wall (322) facing away from the driving member (31), wherein the second side wall (322) is connected to the first side wall (321) and forms a step surface (3220), wherein the step surface (3220) is used to support the workpiece (2).

5. The punching device according to claim 3, characterized in that: The support assembly (3) further comprises: A first driving unit (30), wherein the first driving unit (30) is used to drive the driving member (31) to form a sliding fit or a rotational fit with the guide seat (33).

6. The punching device according to claim 5, characterized in that: The punching device further comprises a reset mechanism (5), wherein the reset mechanism (5) comprises a reset member (51), wherein the reset member (51) is arranged on a side of the inner support slider (32) away from the driving member (31), and is used for driving the inner support slider (32) to reset after the punching of the workpiece (2) is completed.

7. The punching device according to claim 5, characterized in that: The base (1) is further provided with a through opening (100), and the through opening (100) is distributed outside the assembly hole (10); the punching device further comprises a reset mechanism (5), and the reset mechanism (5) comprises: A reset member (51) is movably arranged through the through opening (100) and comprises a first section (511) and a second section (512) located on opposite sides of the base (1); the first section (511) is fixedly connected to the driving end of the first driving unit (30) via a connecting member (52); the second section (512) is provided with a second guide portion (5121); the second guide portion (5121) protrudes relative to the reset member (51) in a direction toward the inner supporting slider (32); and the reset member (51) drives the plurality of inner supporting sliders (32) to reset through the second guide portion (5121) under the drive of the driving member (31).

8. The punching device according to claim 1, characterized in that: The stamping assembly (4) further comprises: A second driving unit (40), the second driving unit (40) being arranged at the bottom of the base (1) and being used to provide driving force for the punching head (41); A guide limit block (42), the guide limit block (42) being arranged on the base (1) and having a guide limit hole, the punch head (41) movably passing through the guide limit hole and slidingly cooperating with the guide limit block (42); A lever arm (43), the lever arm (43) having a first end (431) and a second end (432) arranged opposite to each other, the first end (431) being rotatably connected to a driving end of the second driving unit (40); A connecting arm (44), the connecting arm (44) having a third end (441) and a fourth end (442) arranged opposite to each other, the third end (441) being rotatably connected to an end of the punch head (41) away from the inner support slider (32), and the fourth end (442) being rotatably connected to the second end (432).

9. The punching device according to claim 8, characterized in that: The stamping assembly (4) further comprises: an articulated seat (45), wherein the articulated seat (45) is fixedly mounted on the base (1), and the lever arm (43) is rotatably connected to the articulated seat (45) at one end close to the connecting arm (44) via a rotating pin (46).

10. A spring brake air chamber processing equipment, characterized in that: Comprising the punching device as claimed in any one of claims 1 to 9.

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